At 4 State Trucks, you can upgrade the style of your rig with semi truck rear fenders. We offer a range of options from top brands like Hogebuilt, Merritt, and Minimizer, as well as budget-friendly choices …

Shop premium semi truck parts built for performance, durability, and style. From essential replacements to custom upgrades, keep your rig road-ready.

Ready to shop for our newest semi truck product inventory to date? Check out our new semi truck products and tools!

Find reliable aftermarket upgrades and replacement components that are make-model specific, whether you need Kenwoth W900 truck parts or T680 replacement parts, we have your make/model-specific …

Looking to upgrade the driving performance, interior cab comfort, or overall style of your Peterbilt truck? 4 State Trucks carries the parts and accessories you need to transform your rig inside and out, …

Explore thousands of accessories and semi truck parts made to fit your Freightliner truck. Our in-stock heavy-duty truck parts for Freightliner models offer a warranty-backed, reliable and incredibly …

Discover the perfect semi-truck seat at 4 State Trucks for ultimate comfort and support. Explore adjustable features, durable materials, and vibration dampening for a smooth ride.

That’s why we offer some of the best semi truck seats and accessories in the industry—built for comfort, durability, and long-haul performance. Whether you drive a Peterbilt, Kenworth, Freightliner, or …

Check out the best semi truck air horns over at 4 State Trucks. Whether you're into powerful train horns or sleek dual-tone options, we've got you covered for loud, reliable performance.

Will a CSM bumper fit my specific truck model and year? CSM bumpers are designed for specific truck models and years. Most commonly, they fit Peterbilt 379 (1987-2007), Peterbilt 389 (2008-present), …